ref: b6a2c3b8eb4bd7e5773b6f5294baaddb66cd5fd7
dir: /amr-wb/dec_main.h/
/*--------------------------------------------------------------------------*
* DEC_MAIN.H *
*--------------------------------------------------------------------------*
* Static memory in the decoder *
*--------------------------------------------------------------------------*/
#include "cnst.h" /* coder constant parameters */
#include "dtx.h"
typedef struct
{
Word16 old_exc[PIT_MAX + L_INTERPOL]; /* old excitation vector */
Word16 ispold[M]; /* old isp (immittance spectral pairs) */
Word16 isfold[M]; /* old isf (frequency domain) */
Word16 isf_buf[L_MEANBUF * M]; /* isf buffer(frequency domain) */
Word16 past_isfq[M]; /* past isf quantizer */
Word16 tilt_code; /* tilt of code */
Word16 Q_old; /* old scaling factor */
Word16 Qsubfr[4]; /* old maximum scaling factor */
Word32 L_gc_thres; /* threshold for noise enhancer */
Word16 mem_syn_hi[M]; /* modified synthesis memory (MSB) */
Word16 mem_syn_lo[M]; /* modified synthesis memory (LSB) */
Word16 mem_deemph; /* speech deemph filter memory */
Word16 mem_sig_out[6]; /* hp50 filter memory for synthesis */
Word16 mem_oversamp[2 * L_FILT]; /* synthesis oversampled filter memory */
Word16 mem_syn_hf[M16k]; /* HF synthesis memory */
Word16 mem_hf[2 * L_FILT16k]; /* HF band-pass filter memory */
Word16 mem_hf2[2 * L_FILT16k]; /* HF band-pass filter memory */
Word16 mem_hf3[2 * L_FILT16k]; /* HF band-pass filter memory */
Word16 seed; /* random memory for frame erasure */
Word16 seed2; /* random memory for HF generation */
Word16 old_T0; /* old pitch lag */
Word16 old_T0_frac; /* old pitch fraction lag */
Word16 lag_hist[5];
Word16 dec_gain[23]; /* gain decoder memory */
Word16 seed3; /* random memory for lag concealment */
Word16 disp_mem[8]; /* phase dispersion memory */
Word16 mem_hp400[6]; /* hp400 filter memory for synthesis */
Word16 prev_bfi;
Word16 state;
Word16 first_frame;
dtx_decState *dtx_decSt;
Word16 vad_hist;
} Decoder_State;